How do you write the factor trees for 51?

1 Answer

51 is odd, but it can be divided by 3 (sum of digits divisible by 3)

Explanation:

So we get #51=3xx17#
And there it ends because #17# is prime.

#color(white)(0000)51#
#color(white)(000)"/"color(white)(00)"\"#
#color(white)(00)3color(white)(000)17#